Paraquilegia microphylla

Paraquilegia microphylla is a species of perennial flowering plant in the family Ranunculaceae. It is native across a range spanning Siberia, Central Asia into the Himalayas, and east to Japan. The species has flowers that vary in color across its range, with P. microphylla in the western Himalayas possessing small white flowers while those in the eastern Himalayas produce larger lilac flowers. P. microphylla is the most common member of the genus Paraquilegia in cultivation, though it is often misidentified as Paraquilegia anemonoides. P. microphylla seeds have been introduced to gardeners outside its native range from seed-collecting expeditions to western China and the Himalayas, though the species remains rare in cultivation....read more on Wikipedia.